openqa/fixes: don't do the relay fix on prod

i think the relay 'fix' is only needed for stg, because there
was a firewall rule added for prod but not stg. It's not really
a 'fix' either (it'll stop messages getting out) but it at
least prevents fedmsg-relay failing, so keep it for now.

roles/openqa/fixes/tasks/main.yml

@@ -4,8 +4,9 @@
 - name: remove internal message source policy
   file: path=/etc/fedmsg.d/policy.py state=absent
 
-- name: use packaged relay.py, not ansible one (which doesn't work)
+- name: use packaged relay.py, not ansible one (just till firewall is fixed)
   command: cp /etc/fedmsg.d/relay.py.rpmnew /etc/fedmsg.d/relay.py
+  when: fedmsg_env == "stg"
 
 - name: restart fedmsg services
   service: name={{ item }} state=restarted